diff --git a/PICMI_Python/setup.py b/PICMI_Python/setup.py
index 468bbc0..6d5091b 100644
--- a/PICMI_Python/setup.py
+++ b/PICMI_Python/setup.py
@@ -9,7 +9,7 @@
     install_requires = [ line.strip('\n') for line in f.readlines() ]
 
 setup(name = 'picmistandard',
-      version = '0.0.20',
+      version = '0.0.21',
       description = 'Python base classes for PICMI standard',
       platforms = 'any',
       packages = ['picmistandard'],